If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

If you can't sign in to your Outlook.com, Hotmail, Live, or MSN email account, or you're not sure how to sign in or sign out, here are some solutions.

Each release of the tool helps detect and remove current, prevalent malicious software. This malicious software includes viruses, worms, and Trojan horses. Microsoft uses several metrics to determine the prevalence of a malicious software family and the damage that can be associated with it.

All Outlook Data Files (.pst) and Offline Data Files (.ost) are listed along with the name of the account the files are associated with. If you cannot open your Outlook data file or suspect that the file is damaged, use the Inbox Repair tool (scanpst.exe) to repair errors in the file.

Repair an Office application. Excel for Microsoft 365 Word for Microsoft 365 Outlook for Microsoft 365 More... If a Microsoft 365 application such as Word or Excel isn’t working correctly, sometimes restarting it will fix the problem. If that doesn’t work, you can try repairing it.

Getting ready for the Windows 11 upgrade. How to check if your device meets Windows 11 system requirements after changing device hardware. Learn how to use the PC Health Check app to help you improve your device performance.

In Microsoft Edge, select More options > Settings > Profiles > Sync. You'll see a list of the features and data types available for sync. Select the toggles along the right side of the screen to turn sync on or off for each feature.

These formats and file name extensions apply to Microsoft Word, Microsoft Excel, and Microsoft PowerPoint. This article discusses key benefits of the format, describes the file name extensions and discusses how you can share Office files with people who are using earlier versions of Office. In this article.

Sometimes a file can be damaged in such a way that Word, Excel, or PowerPoint can't open it normally. But all is not lost. The Open and Repair command might be able to recover your file. Click File > Open > Browse and then go to the location or folder where the document (Word), workbook (Excel), or presentation (PowerPoint) is stored.

1. Right-click the Start button, and click Run. 2. Type Outlook.exe /safe, and click OK. Tip: If Windows can't find Outlook.exe /safe, try using the full path to Outlook (for example C:\Program Files\Microsoft Office\OfficeXX, where XX is your version number).